@article {5695, title = {Molecular phylogenetic support for a broader delimitation of Uvaria (Annonaceae), inclusive of Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia}, journal = {Systematics and BiodiversitySystematics and Biodiversity}, volume = {7}, number = {3}, year = {2009}, note = {494YKTimes Cited:0Cited References Count:59}, month = {Sep}, pages = {249-258}, abstract = {Uvaria (Annonaceae), a large palaeotropical genus of woody climbers, closely resembles several other smaller genera, including Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia. A molecular phylogenetic analysis of this group was undertaken using maximum parsimony, maximum likelihood and Bayesian methods based on four chloroplast DNA regions (matK, psbA-trnH spacer, rbcL and trnL-F). The resultant trees were moderately well resolved with significant statistical support for most nodes. Uvaria is shown unequivocally to be paraphyletic, with all representatives of the other five genera nested within it. The distinguishing morphological characteristics of the related genera are re-evaluated, and interpreted as no more than specialised adaptations of the basic Uvari structure. The generic names Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia are accordingly reduced to synonymy with Uvaria, necessitating 11 new nomenclatural combinations and four replacement names.}, keywords = {age, amplification, Annonaceae, anomianthus, chloroplast DNA, cyathostemma, ellipeia, ellipeiopsis, lowland dipterocarp forest, malaysia, melodorum, nomenclature, phylogeny, pollination, rauwenhoffia, regions, sarawak, SYSTEMATICS, taxonomy, uvaria}, isbn = {1477-2000}, author = {Zhou, L. and Su, Y. C. F. and Saunders, R. M. K.} } @article {5041, title = {Significance of palynology for phylogeny of Annonaceae: Experiments with removal of pollen characters}, journal = {Plant Systematics and EvolutionPlant Systematics and Evolution}, volume = {206}, number = {1-4}, year = {1997}, pages = {133-159}, abstract = {Phylogenetic analyses based on morphology place Anaxagorea and other taxa with granular monosulcate pollen, as in other Magnoliales, at the base of Annonaceae. Taxa with columellar tetrads, granular tetrads, and inaperturate monads form a derived clade. To test the systematic importance of palynology, we analyzed the data set with pollen characters removed. The result was lower resolution and a different rooting of the family, between Uvariopsis and other groups with columellar tetrads. Anaxagorea and other monosulcates are higher in the tree, implying that granular monosulcate pollen, laminar stamens, and irregular endosperm ruminations are reversals. This rooting is highly unparsimonious when pollen characters are included, and only weakly supported over the Anaxagorea rooting when pollen is excluded. Together with preliminary molecular analyses, these experiments confirm the special value of palynology in systematics of Annonaceae.}, keywords = {Annonaceae, cladistics, EVOLUTION, GENERA, Magnoliales, palynology, phylogeny, SYSTEMATICS, ULTRASTRUCTURE}, author = {Doyle, J. A. and LeThomas, A.} } @article {669, title = {Evolution and phylogenetic significance of pollen in Annonaceae}, journal = {Botanical Journal of the Linnean Society}, volume = {169}, number = {1}, year = {2012}, pages = {190-221}, publisher = {Blackwell Publishing Ltd}, abstract = {The remarkable diversity of pollen morphology in Annonaceae has attracted systematic attention since the 1970s. Optimization of pollen characters on a molecular tree confirms that granular monosulcate pollen, as in Anaxagorea and subfamily Ambavioideae, was ancestral in the family. However, granular structure is derived for angiosperms as a whole, and exine characters are highly homoplastic in Annonaceae. Because columellar taxa (Annickia, Bocageeae) diverged earlier than previously thought, columellae may have re-originated in the common ancestor of Malmeoideae and Annonoideae, which make up most of the family, with several later reversals to granular structure. In Malmeoideae, loss of the sulcus and origin of a verrucate tectum occurred in the tribe Miliuseae, followed by an uncertain number of origins of disulculate pollen. Tetrads arose several times in Annonoideae, but reverted to monads in Isolona and probably Uvarieae. Recognition that microspores rotate during development in Annona and Cymbopetalum suggests that the proximal thin area in these taxa is a modified distal sulcus, but rotation does not occur in all tetrad groups; a broader survey is needed to evaluate this phenomenon.~{\textcopyright} 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 190{\textendash}221.}, keywords = {angiosperms, Magnoliales, morphology, palynology, phylogeny, SYSTEMATICS}, isbn = {1095-8339}, url = {http://dx.doi.org/10.1111/j.1095-8339.2012.01241.x}, author = {Doyle, James A. and Le Thomas, Annick} } @article {110, title = {Molecular phylogenetic support for a broader delimitation of Uvaria (Annonaceae), inclusive of Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia}, journal = {Systematics and Biodiversity}, volume = {7}, number = {3}, year = {2009}, note = {494YKTimes Cited:0Cited References Count:59}, month = {Sep}, pages = {249-258}, abstract = {Uvaria (Annonaceae), a large palaeotropical genus of woody climbers, closely resembles several other smaller genera, including Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia. A molecular phylogenetic analysis of this group was undertaken using maximum parsimony, maximum likelihood and Bayesian methods based on four chloroplast DNA regions (matK, psbA-trnH spacer, rbcL and trnL-F). The resultant trees were moderately well resolved with significant statistical support for most nodes. Uvaria is shown unequivocally to be paraphyletic, with all representatives of the other five genera nested within it. The distinguishing morphological characteristics of the related genera are re-evaluated, and interpreted as no more than specialised adaptations of the basic Uvari structure. The generic names Anomianthus, Cyathostemma, Ellipeia, Ellipeiopsis and Rauwenhoffia are accordingly reduced to synonymy with Uvaria, necessitating 11 new nomenclatural combinations and four replacement names.}, keywords = {age, amplification, Annonaceae, anomianthus, chloroplast DNA, cyathostemma, ellipeia, ellipeiopsis, lowland dipterocarp forest, malaysia, melodorum, nomenclature, phylogeny, pollination, rauwenhoffia, regions, sarawak, SYSTEMATICS, taxonomy, uvaria}, isbn = {1477-2000}, url = {://000269855600002}, author = {Zhou, L. L. and Su, Y.C.F. and Saunders, R.M.K.} }